A:
Positive:
1 x 126051255 x 252102513 x 96962525 x 50420565 x 193925125 x 100841325 x 387851625 x 7757
Negative:
-1 x -12605125-5 x -2521025-13 x -969625-25 x -504205-65 x -193925-125 x -100841-325 x -38785-1625 x -7757
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 12,605,125, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 12,605,125 | |
| -1 | -12,605,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,605,125.
Example:
1 x 12,605,125 = 12,605,125
and
-1 x -12,605,125 = 12,605,125
Notice both answers equal 12,605,125
With that explanation out of the way, let's continue. Next, we take the number 12,605,125 and divide it by 2:
12,605,125 ÷ 2 = 6,302,562.5
If the quotient is a whole number, then 2 and 6,302,562.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 12,605,125 | |
| -1 | -12,605,125 |
Now, we try dividing 12,605,125 by 3:
12,605,125 ÷ 3 = 4,201,708.3333
If the quotient is a whole number, then 3 and 4,201,708.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 12,605,125 | |
| -1 | -12,605,125 |
Let's try dividing by 4:
12,605,125 ÷ 4 = 3,151,281.25
If the quotient is a whole number, then 4 and 3,151,281.25 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 12,605,125 | |
| -1 | 12,605,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 65 | 125 | 325 | 1,625 | 7,757 | 38,785 | 100,841 | 193,925 | 504,205 | 969,625 | 2,521,025 | 12,605,125 |
| -1 | -5 | -13 | -25 | -65 | -125 | -325 | -1,625 | -7,757 | -38,785 | -100,841 | -193,925 | -504,205 | -969,625 | -2,521,025 | -12,605,125 |
Here are some more numbers to try:
Try the factor calculator